Across
- 3. How their atoms are arranged, connected, and the atoms that are used.
- 5. a physical and/or mathematical and/or conceptual representation of a system of ideas, events or processes.
- 6. Filters. A redistribution of atoms or atomic groups within a molecule, forming the molecule of a different substance.
- 7. of matter include any traits that can be measured, such as an object's density, colour, mass, volume, length
- 9. a group of two or more atoms that form the smallest identifiable unit into which a pure substance can be divided and still retain the composition
- 11. is a form of matter that has constant chemical composition and characteristic properties. It cannot be separated into components without breaking chemical bonds.
- 12. is a substance that is formed as the result of a chemical reaction.
- 13. An ordered system of numbering or indexing that is used as a reference standard in measurement, in which each number corresponds to some physical quantity.
- 15. refers to a substance that has the power to cause irreversible damage or destroy another substance by contact
- 16. is a substance that is present at the start of a chemical reaction. The substance(s) to the right of the arrow are called products . A product is a substance that is present at the end of a chemical reaction.
Down
- 1. ,tells us the number of atoms of each element in a compound. It contains the symbols
- 2. ,smallest unit into which matter can be divided
- 4. is a process in which one or more substances, also called reactants, are converted to one or more
- 8. temperature at which the pressure exerted by the surroundings upon a liquid is equaled by the pressure exerted by the vapor of the liquid
- 10. re compounds or mixtures delivered as solids, liquids or gases, that supply essential nutrients to crops in soluble forms that are convenient and safe
- 14. at which the solid and liquid forms of a pure substance can exist in equilibrium.